title: Exalted photocatalytic activity of tetragonal BiVO4 by Er3+ doping through a luminescence cooperative mechanism.
abstract: Er-doped BiVO4 are synthesized by means of a surfactant free microwave assisted hydrothermal method having good photoactivities under sun-like excitation for the degradation of methylene blue. From the structural and morphological characterization, it has been stated that the presence of Er(3+) induces a slight stabilization of the tetragonal phase, probably due to its incorporation in the BiVO4 lattice. The best photocatalytic performances were attained for the samples with Er(3+) content higher than 3 at%. The occurrence of the Er(3+) doped tetragonal BiVO4 clearly induces higher photocatalytic activities. The existence of a luminescence process has been related with the enhanced photoactivity observed.
authors.affiliation: Instituto de Ciencia de Materiales de Sevilla, Centro Mixto CSIC-Universidad de Sevilla, Américo Vespucio, 49, 41092 Sevilla, Spain. gcolon@icmse.csic.es.
authors.forename: Sergio
authors.initials: S
authors.lastname: Obregón
authors.forename: Soo W
authors.initials: SW
authors.lastname: Lee
authors.forename: Gerardo
authors.initials: G
authors.lastname: Colón